Calculates how many times you need to reuse an alternative bag to offset the environmental impact of a plastic bag.
Start with your values, or try a preset.
Enter Average uses of a single plastic bag, Environmental Impact of an alternative bag (e.g., kg CO2e), and Environmental Impact of a plastic bag (e.g., kg CO2e) in the units shown.
Read Reusable Bag Uses Needed to Offset Impact in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Average uses of a single plastic bag: 1; Environmental Impact of an alternative bag (e.g., kg CO2e): 0.2 kg CO2e; Environmental Impact of a plastic bag (e.g., kg CO2e): 0.05 kg CO2e
Reusable Bag Uses Needed to Offset Impact: 0.25 times
Average uses of a single plastic bag: 5; Environmental Impact of an alternative bag (e.g., kg CO2e): 0.2 kg CO2e; Environmental Impact of a plastic bag (e.g., kg CO2e): 0.05 kg CO2e
Reusable Bag Uses Needed to Offset Impact: 1.25 times
Average uses of a single plastic bag: 1; Environmental Impact of an alternative bag (e.g., kg CO2e): 0.5 kg CO2e; Environmental Impact of a plastic bag (e.g., kg CO2e): 0.05 kg CO2e
Reusable Bag Uses Needed to Offset Impact: 0.1 times
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